Exterior crank-case oil heater



Oct. 14 1924. 1,511,250

0. E. WRIGHT EXTERIOR CRANK CASE OIL HEATER Filed July 18. 1923 2Sheets-Sheet l t 0 r f snow doc f9 O. E. WRIGHT EXTERIOR CRANK CASE OILHEATER Filed July 18, 1923 2 Sheets-Sheet 2 gvwenloz Patented Get. 1 1-,1924.

owns a. wnrenr, or nnaoai, sou'rn DAKOTA.

EXTERIOR CRANK-CASE OIL HEATH.

Application filed July 18, 1923. Serial No. 652,392.

To all whom it may ccmcem:

Be it known that I, OWEN E. WRIGHT, citizen of the United States,residin at Huron, in the county of Beadle and tate of South Dakota, haveinvented certain new seeks, among other objects, to provide a devicewhich will, in cold weather, prevent the chilling of the oil in anengine crank case and thus overcome otherwise faulty lubrication due toviscosity of the oil.

The invention seeks, as a further object, to provide a device which maybe readily applied over the engine crank case and connected with theexhaust pipe of the engine so that the heat from the engine exhaustgases will be utilized for heating the crank case.

And the invention seeks, as a still further object, to provide a devicewhich, while being particularly adapted for use upon Dodge engines, mayalso be employed upon en ines of other makes.

subject of the present invention,

ther and incidental objects will appear hereinafter.

In the drawings: Figure 1 is a side elevation showing my improved heaterapplied to a Dodge engine,

. 'Figure 2 is an enlarged elevation, the heating pan employed beingbroken away and shown in section,

Flgure 3 1s a transverse sectlonal new on the line 33 of Figure 2,looking in the' direction of the arrows, and

Figure 4' is a detail perspective view of the heating pan.

Referrin drawings, have, for convenience, shown my improved heater inconjunction with a Dodge engine embodying the usual cylinder block 10having flanges 11 and connected to said flan es is an oil pan 12. Thepan 12 is provid ed with flanges 13 abutting the flanges 11 andextending through said flanges are cap bolts 14. The usual oil pump ofthe engine is indicated at 15 and connecting the pump with the oil pan12 is a pipe 16. The exhaust pipe of t e engine is indicated at 17.

Coming now more particularl to the employ a heating pan or jacket 18which is formed now more particularly to the to removably fit snuglyabout the rear end portion of the oil pan 12. The heating pan ispreferably constructed of suitable sheet metal and is provided with abottom wall 19 from which extend upwardly convergent side walls. 20provided at their upper ends with laterally directed flanges 21 seatingflat against the flanges 13 of the oil pan 12. As brought out in Figure4,the flanges 21 are apertured to accommodate three of the cap bolts 14which bolts are utilized for connecting the heatin pan with the engine.Thus, the necessity or separate fastening devices for the heating pan iseliminate while, by removing the proper cap bolts of. the oil pan, theheating pan may be readily applied, the cap bolts removed being each, ofcourse, again inserted through the flanges of the heating pan and throuh the flanges of the oil pan, as shown in igure 3, for tightly'securingthe heating pan in. place.

Extending between the side walls 20 of the course, firstdetached so thatsaid oil pipe may be inserted through the openin 2 1 and later connectedto the pump after t e heating pan has been secured in position.Extending between the side walls' 20 of the heating pan in spacedparallel relation to the front wall 22, is a back wall 25 which, likethe wall 22, is also cutaway, as particularly shown in Figure 3, to fitthe oil pan 12. In this connection, it is to be noted that said oil pangradually slopes downwardly to a maximum depth at a point behind thepump 15 and then rises abruptl toward the pump. Accordingly, the bacwall 25 is formed with a corresponding opening 26 to accommodate thedownwardly sloping portion of the pan, the opening 26 being providedwith downwardlyconverging side walls to snugly fit thesldes of the panand with a straight bottom wall to snugly fit the bottom of the pan. Atits deepest portion, the oil pan 12 forms, of course a sump for thecrank case oil and, as will now be seen, the heating pan 18 cooperateswith the oil pan to form a jacket housing said sump.

Surrounding the exhaust pipe 17 is a collar 27 communicating with thepipe and area connected to said; colisris a pipe 28 which maybeeithesrigici or fiexibie ,es preferred, Mounted. upon the back well 25of the heat-' 1 ing'pen 18 at one side thereof is an inlet Hippie29'removeb1y accommodating the for Miounted upon the collar-27 is anopprm fastening means connecting the crank case 1 with said block, of oheating pen removsbly I pr-iota: valvefil to the lever of which is attacked o roai 32 which may from the drivers soot of the vehicle for.Thus, While the engine is running, exhaust gases maybe be operatedopening or closing zthe valve.

diverted; through the pipe 28 into the host ing pan 18 to circulatearound the oi 112,121.12 when ssi gases 7 will discharge through theoutlet pipe 30; A iooorciingl I, the oii inthe sump of the oil pan Wiiibe ept heated; and,

therefore, mainteined'ine fluentcondition.

' time provide edevice: which will overcome eii the trouble heretoforeexperienced due to chilling of the crank oese oii'a'nd'while 11-'wmi'eotion with a, Dmige engine, still, as wiii snow: be seen,v thevdievice may be readily I block, of shooting I an removsbly securedsdspiied; to engines of oher'makesf Having thusdesoribed EhG-IHVGHMOE,whet secured about the crank case by said fastenmusse ing moons to forms jacket housing said sump, and means for diverting exhaust gasesthrough seioi jacket. 1 I 2.. The combination with an internal eombastion engine having en'oii' pan, a nd'an oii pump pipe extendingexteriorly of the oil panendexposed to the atmosphere, of s hosting panfitting the oilpan toprovide' o heating jacket housing a portion of saidpipe for protecting the 'PIPB and confining exheust gases to direct,contactv therewith,

through said jacket, r

3, In a orank oase oii heaterfor interns *eombustion engines, a heatingpen having Walls, the front and book Wells being out; away to fit anengine oil pan embraced by said side Wells andv theside Walls bein'formed with overhanging flanges apersure 1 engines.

crank case provided with an. oil sump, and bolts connecting theorankosse with ssici shoot the crank case y said: bolts-to form a'gaoket housing said sumg and having side walls; provided with oversinging flanges sccommodetin ssid jeoketp GWEN E. WRIGHT. [11. s.,]

an: means for diverting exhoust' gasesm- Q. ide ondfbottomwolis andirons and book 6s s to receive bolts securing theoii pan to the i 4c,The combinetionlwikh on internal eom- I :bustion engine having a,cylinder blocks Z v6Q the bolts therethroogh, emi -1. means fordiverting exhaust-gases through I In testimony whereof I sfix mysignature. I o I

